src/mesa/main/varray.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.6
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #include "glheader.h"
  28 #include "imports.h"
  29 #include "bufferobj.h"
  30 #include "context.h"
  31 #include "enable.h"
  32 #include "enums.h"
  33 #include "hash.h"
  34 #include "image.h"
  35 #include "macros.h"
  36 #include "mfeatures.h"
  37 #include "mtypes.h"
  38 #include "varray.h"
  39 #include "arrayobj.h"
  40 #include "main/dispatch.h"
  41
  42
  43 /** Used to do error checking for GL_EXT_vertex_array_bgra */
  44 #define BGRA_OR_4  5
  45
  46
  47 /** Used to indicate which GL datatypes are accepted by each of the
  48  * glVertex/Color/Attrib/EtcPointer() functions.
  49  */
  50 #define BOOL_BIT             0x1
  51 #define BYTE_BIT             0x2
  52 #define UNSIGNED_BYTE_BIT    0x4
  53 #define SHORT_BIT            0x8
  54 #define UNSIGNED_SHORT_BIT   0x10
  55 #define INT_BIT              0x20
  56 #define UNSIGNED_INT_BIT     0x40
  57 #define HALF_BIT             0x80
  58 #define FLOAT_BIT            0x100
  59 #define DOUBLE_BIT           0x200
  60 #define FIXED_ES_BIT         0x400
  61 #define FIXED_GL_BIT         0x800
  62 #define UNSIGNED_INT_2_10_10_10_REV_BIT 0x1000
  63 #define INT_2_10_10_10_REV_BIT 0x2000
  64
  65
  66 /** Convert GL datatype enum into a <type>_BIT value seen above */
  67 static GLbitfield
  68 type_to_bit(const struct gl_context *ctx, GLenum type)
  69 {
  70    switch (type) {
  71    case GL_BOOL:
  72       return BOOL_BIT;
  73    case GL_BYTE:
  74       return BYTE_BIT;
  75    case GL_UNSIGNED_BYTE:
  76       return UNSIGNED_BYTE_BIT;
  77    case GL_SHORT:
  78       return SHORT_BIT;
  79    case GL_UNSIGNED_SHORT:
  80       return UNSIGNED_SHORT_BIT;
  81    case GL_INT:
  82       return INT_BIT;
  83    case GL_UNSIGNED_INT:
  84       return UNSIGNED_INT_BIT;
  85    case GL_HALF_FLOAT:
  86       if (ctx->Extensions.ARB_half_float_vertex)
  87          return HALF_BIT;
  88       else
  89          return 0x0;
  90    case GL_FLOAT:
  91       return FLOAT_BIT;
  92    case GL_DOUBLE:
  93       return DOUBLE_BIT;
  94    case GL_FIXED:
  95       return _mesa_is_desktop_gl(ctx) ? FIXED_GL_BIT : FIXED_ES_BIT;
  96    case GL_UNSIGNED_INT_2_10_10_10_REV:
  97       return UNSIGNED_INT_2_10_10_10_REV_BIT;
  98    case GL_INT_2_10_10_10_REV:
  99       return INT_2_10_10_10_REV_BIT;
 100    default:
 101       return 0;
 102    }
 103 }
 104
 105
 106 /**
 107  * Do error checking and update state for glVertex/Color/TexCoord/...Pointer
 108  * functions.
 109  *
 110  * \param func  name of calling function used for error reporting
 111  * \param attrib  the attribute array index to update
 112  * \param legalTypes  bitmask of *_BIT above indicating legal datatypes
 113  * \param sizeMin  min allowable size value
 114  * \param sizeMax  max allowable size value (may also be BGRA_OR_4)
 115  * \param size  components per element (1, 2, 3 or 4)
 116  * \param type  datatype of each component (GL_FLOAT, GL_INT, etc)
 117  * \param stride  stride between elements, in elements
 118  * \param normalized  are integer types converted to floats in [-1, 1]?
 119  * \param integer  integer-valued values (will not be normalized to [-1,1])
 120  * \param ptr  the address (or offset inside VBO) of the array data
 121  */
 122 static void
 123 update_array(struct gl_context *ctx,
 124              const char *func,
 125              GLuint attrib, GLbitfield legalTypesMask,
 126              GLint sizeMin, GLint sizeMax,
 127              GLint size, GLenum type, GLsizei stride,
 128              GLboolean normalized, GLboolean integer,
 129              const GLvoid *ptr)
 130 {
 131    struct gl_client_array *array;
 132    GLbitfield typeBit;
 133    GLsizei elementSize;
 134    GLenum format = GL_RGBA;
 135
 136    if (_mesa_is_gles(ctx)) {
 137       /* Once Mesa gets support for GL_OES_vertex_half_float this mask will
 138        * change.  Adding support for this extension isn't quite as trivial as
 139        * we'd like because ES uses a different enum value for GL_HALF_FLOAT.
 140        */
 141       legalTypesMask &= ~(FIXED_GL_BIT | HALF_BIT | DOUBLE_BIT);
 142
 143       /* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
 144        * 3.0.  The 2_10_10_10 types are added in OpenGL ES 3.0 or
 145        * GL_OES_vertex_type_10_10_10_2.
 146        */
 147       if (ctx->Version < 30) {
 148          legalTypesMask &= ~(UNSIGNED_INT_BIT
 149                              | INT_BIT
 150                              | UNSIGNED_INT_2_10_10_10_REV_BIT
 151                              | INT_2_10_10_10_REV_BIT);
 152       }
 153
 154       /* BGRA ordering is not supported in ES contexts.
 155        */
 156       if (sizeMax == BGRA_OR_4)
 157          sizeMax = 4;
 158    } else {
 159       legalTypesMask &= ~FIXED_ES_BIT;
 160
 161       if (!ctx->Extensions.ARB_ES2_compatibility)
 162          legalTypesMask &= ~FIXED_GL_BIT;
 163
 164       if (!ctx->Extensions.ARB_vertex_type_2_10_10_10_rev)
 165          legalTypesMask &= ~(UNSIGNED_INT_2_10_10_10_REV_BIT |
 166                              INT_2_10_10_10_REV_BIT);
 167    }
 168
 169    typeBit = type_to_bit(ctx, type);
 170    if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
 171       _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
 172                   func, _mesa_lookup_enum_by_nr(type));
 173       return;
 174    }
 175
 176    /* Do size parameter checking.
 177     * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
 178     * must be handled specially.
 179     */
 180    if (ctx->Extensions.EXT_vertex_array_bgra &&
 181        sizeMax == BGRA_OR_4 &&
 182        size == GL_BGRA) {
 183       GLboolean bgra_error = GL_FALSE;
 184
 185       if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) {
 186          if (type != GL_UNSIGNED_INT_2_10_10_10_REV &&
 187              type != GL_INT_2_10_10_10_REV &&
 188              type != GL_UNSIGNED_BYTE)
 189             bgra_error = GL_TRUE;
 190       } else if (type != GL_UNSIGNED_BYTE)
 191          bgra_error = GL_TRUE;
 192
 193       if (bgra_error) {
 194          _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);
 195          return;
 196       }
 197       format = GL_BGRA;
 198       size = 4;
 199    }
 200    else if (size < sizeMin || size > sizeMax || size > 4) {
 201       _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
 202       return;
 203    }
 204
 205    if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
 206        (type == GL_UNSIGNED_INT_2_10_10_10_REV ||
 207         type == GL_INT_2_10_10_10_REV) && size != 4) {
 208       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=%d)", func, size);
 209       return;
 210    }
 211
 212    ASSERT(size <= 4);
 213
 214    if (stride < 0) {
 215       _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
 216       return;
 217    }
 218
 219    if (ctx->Array.ArrayObj->ARBsemantics &&
 220        !_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
 221       /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
 222        * Generate GL_INVALID_OPERATION if that's not true.
 223        */
 224       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
 225       return;
 226    }
 227
 228    elementSize = _mesa_sizeof_type(type) * size;
 229
 230    array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
 231    array->Size = size;
 232    array->Type = type;
 233    array->Format = format;
 234    array->Stride = stride;
 235    array->StrideB = stride ? stride : elementSize;
 236    array->Normalized = normalized;
 237    array->Integer = integer;
 238    array->Ptr = (const GLubyte *) ptr;
 239    array->_ElementSize = elementSize;
 240
 241    _mesa_reference_buffer_object(ctx, &array->BufferObj,
 242                                  ctx->Array.ArrayBufferObj);
 243
 244    ctx->NewState |= _NEW_ARRAY;
 245    ctx->Array.ArrayObj->NewArrays |= VERT_BIT(attrib);
 246 }
 247
 248
 249 void GLAPIENTRY
 250 _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
 251 {
 252    GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT |
 253                             DOUBLE_BIT | HALF_BIT | FIXED_ES_BIT |
 254                             UNSIGNED_INT_2_10_10_10_REV_BIT |
 255                             INT_2_10_10_10_REV_BIT);
 256    GET_CURRENT_CONTEXT(ctx);
 257    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 258
 259    if (ctx->API == API_OPENGLES)
 260       legalTypes |= BYTE_BIT;
 261
 262    update_array(ctx, "glVertexPointer", VERT_ATTRIB_POS,
 263                 legalTypes, 2, 4,
 264                 size, type, stride, GL_FALSE, GL_FALSE, ptr);
 265 }
 266
 267
 268 void GLAPIENTRY
 269 _mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )
 270 {
 271    const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT |
 272                                   HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 273                                   FIXED_ES_BIT |
 274                                   UNSIGNED_INT_2_10_10_10_REV_BIT |
 275                                   INT_2_10_10_10_REV_BIT);
 276    GET_CURRENT_CONTEXT(ctx);
 277    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 278
 279    update_array(ctx, "glNormalPointer", VERT_ATTRIB_NORMAL,
 280                 legalTypes, 3, 3,
 281                 3, type, stride, GL_TRUE, GL_FALSE, ptr);
 282 }
 283
 284
 285 void GLAPIENTRY
 286 _mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
 287 {
 288    GET_CURRENT_CONTEXT(ctx);
 289    const GLbitfield legalTypes = (ctx->API == API_OPENGLES)
 290       ? (UNSIGNED_BYTE_BIT | HALF_BIT | FLOAT_BIT | FIXED_ES_BIT)
 291       : (BYTE_BIT | UNSIGNED_BYTE_BIT |
 292          SHORT_BIT | UNSIGNED_SHORT_BIT |
 293          INT_BIT | UNSIGNED_INT_BIT |
 294          HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 295          UNSIGNED_INT_2_10_10_10_REV_BIT |
 296          INT_2_10_10_10_REV_BIT);
 297    const GLint sizeMin = (ctx->API == API_OPENGLES) ? 4 : 3;
 298    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 299
 300    update_array(ctx, "glColorPointer", VERT_ATTRIB_COLOR0,
 301                 legalTypes, sizeMin, BGRA_OR_4,
 302                 size, type, stride, GL_TRUE, GL_FALSE, ptr);
 303 }
 304
 305
 306 void GLAPIENTRY
 307 _mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)
 308 {
 309    const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
 310    GET_CURRENT_CONTEXT(ctx);
 311    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 312
 313    update_array(ctx, "glFogCoordPointer", VERT_ATTRIB_FOG,
 314                 legalTypes, 1, 1,
 315                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 316 }
 317
 318
 319 void GLAPIENTRY
 320 _mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 321 {
 322    const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT |
 323                                   FLOAT_BIT | DOUBLE_BIT);
 324    GET_CURRENT_CONTEXT(ctx);
 325    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 326
 327    update_array(ctx, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX,
 328                 legalTypes, 1, 1,
 329                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 330 }
 331
 332
 333 void GLAPIENTRY
 334 _mesa_SecondaryColorPointerEXT(GLint size, GLenum type,
 335                                GLsizei stride, const GLvoid *ptr)
 336 {
 337    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 338                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 339                                   INT_BIT | UNSIGNED_INT_BIT |
 340                                   HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 341                                   UNSIGNED_INT_2_10_10_10_REV_BIT |
 342                                   INT_2_10_10_10_REV_BIT);
 343    GET_CURRENT_CONTEXT(ctx);
 344    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 345
 346    update_array(ctx, "glSecondaryColorPointer", VERT_ATTRIB_COLOR1,
 347                 legalTypes, 3, BGRA_OR_4,
 348                 size, type, stride, GL_TRUE, GL_FALSE, ptr);
 349 }
 350
 351
 352 void GLAPIENTRY
 353 _mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
 354                       const GLvoid *ptr)
 355 {
 356    GLbitfield legalTypes = (SHORT_BIT | INT_BIT |
 357                             HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 358                             FIXED_ES_BIT |
 359                             UNSIGNED_INT_2_10_10_10_REV_BIT |
 360                             INT_2_10_10_10_REV_BIT);
 361    GET_CURRENT_CONTEXT(ctx);
 362    const GLuint unit = ctx->Array.ActiveTexture;
 363    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 364
 365    if (ctx->API == API_OPENGLES)
 366       legalTypes |= BYTE_BIT;
 367
 368    update_array(ctx, "glTexCoordPointer", VERT_ATTRIB_TEX(unit),
 369                 legalTypes, 1, 4,
 370                 size, type, stride, GL_FALSE, GL_FALSE,
 371                 ptr);
 372 }
 373
 374
 375 void GLAPIENTRY
 376 _mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
 377 {
 378    const GLbitfield legalTypes = UNSIGNED_BYTE_BIT;
 379    /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
 380    const GLboolean integer = GL_TRUE;
 381    GET_CURRENT_CONTEXT(ctx);
 382    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 383
 384    update_array(ctx, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG,
 385                 legalTypes, 1, 1,
 386                 1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr);
 387 }
 388
 389
 390 void GLAPIENTRY
 391 _mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr)
 392 {
 393    const GLbitfield legalTypes = (FLOAT_BIT | FIXED_ES_BIT);
 394    GET_CURRENT_CONTEXT(ctx);
 395    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 396
 397    if (ctx->API != API_OPENGLES) {
 398       _mesa_error(ctx, GL_INVALID_OPERATION,
 399                   "glPointSizePointer(ES 1.x only)");
 400       return;
 401    }
 402
 403    update_array(ctx, "glPointSizePointer", VERT_ATTRIB_POINT_SIZE,
 404                 legalTypes, 1, 1,
 405                 1, type, stride, GL_FALSE, GL_FALSE, ptr);
 406 }
 407
 408
 409 #if FEATURE_NV_vertex_program
 410 /**
 411  * Set a vertex attribute array.
 412  * Note that these arrays DO alias the conventional GL vertex arrays
 413  * (position, normal, color, fog, texcoord, etc).
 414  * The generic attribute slots at #16 and above are not touched.
 415  */
 416 void GLAPIENTRY
 417 _mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type,
 418                             GLsizei stride, const GLvoid *ptr)
 419 {
 420    const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT |
 421                                   FLOAT_BIT | DOUBLE_BIT);
 422    GLboolean normalized = GL_FALSE;
 423    GET_CURRENT_CONTEXT(ctx);
 424    ASSERT_OUTSIDE_BEGIN_END(ctx);
 425
 426    if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
 427       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)");
 428       return;
 429    }
 430
 431    if (type == GL_UNSIGNED_BYTE && size != 4) {
 432       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)");
 433       return;
 434    }
 435
 436    update_array(ctx, "glVertexAttribPointerNV", VERT_ATTRIB_GENERIC(index),
 437                 legalTypes, 1, BGRA_OR_4,
 438                 size, type, stride, normalized, GL_FALSE, ptr);
 439 }
 440 #endif
 441
 442
 443 #if FEATURE_ARB_vertex_program
 444 /**
 445  * Set a generic vertex attribute array.
 446  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 447  * (position, normal, color, fog, texcoord, etc).
 448  */
 449 void GLAPIENTRY
 450 _mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,
 451                              GLboolean normalized,
 452                              GLsizei stride, const GLvoid *ptr)
 453 {
 454    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 455                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 456                                   INT_BIT | UNSIGNED_INT_BIT |
 457                                   HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
 458                                   FIXED_ES_BIT | FIXED_GL_BIT |
 459                                   UNSIGNED_INT_2_10_10_10_REV_BIT |
 460                                   INT_2_10_10_10_REV_BIT);
 461    GET_CURRENT_CONTEXT(ctx);
 462    ASSERT_OUTSIDE_BEGIN_END(ctx);
 463
 464    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 465       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");
 466       return;
 467    }
 468
 469    update_array(ctx, "glVertexAttribPointer", VERT_ATTRIB_GENERIC(index),
 470                 legalTypes, 1, BGRA_OR_4,
 471                 size, type, stride, normalized, GL_FALSE, ptr);
 472 }
 473 #endif
 474
 475
 476 /**
 477  * GL_EXT_gpu_shader4 / GL 3.0.
 478  * Set an integer-valued vertex attribute array.
 479  * Note that these arrays DO NOT alias the conventional GL vertex arrays
 480  * (position, normal, color, fog, texcoord, etc).
 481  */
 482 void GLAPIENTRY
 483 _mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,
 484                            GLsizei stride, const GLvoid *ptr)
 485 {
 486    const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
 487                                   SHORT_BIT | UNSIGNED_SHORT_BIT |
 488                                   INT_BIT | UNSIGNED_INT_BIT);
 489    const GLboolean normalized = GL_FALSE;
 490    const GLboolean integer = GL_TRUE;
 491    GET_CURRENT_CONTEXT(ctx);
 492    ASSERT_OUTSIDE_BEGIN_END(ctx);
 493
 494    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 495       _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)");
 496       return;
 497    }
 498
 499    update_array(ctx, "glVertexAttribIPointer", VERT_ATTRIB_GENERIC(index),
 500                 legalTypes, 1, 4,
 501                 size, type, stride, normalized, integer, ptr);
 502 }
 503
 504
 505
 506 void GLAPIENTRY
 507 _mesa_EnableVertexAttribArrayARB(GLuint index)
 508 {
 509    struct gl_array_object *arrayObj;
 510    GET_CURRENT_CONTEXT(ctx);
 511    ASSERT_OUTSIDE_BEGIN_END(ctx);
 512
 513    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 514       _mesa_error(ctx, GL_INVALID_VALUE,
 515                   "glEnableVertexAttribArrayARB(index)");
 516       return;
 517    }
 518
 519    arrayObj = ctx->Array.ArrayObj;
 520
 521    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
 522
 523    if (!arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
 524       /* was disabled, now being enabled */
 525       FLUSH_VERTICES(ctx, _NEW_ARRAY);
 526       arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_TRUE;
 527       arrayObj->_Enabled |= VERT_BIT_GENERIC(index);
 528       arrayObj->NewArrays |= VERT_BIT_GENERIC(index);
 529    }
 530 }
 531
 532
 533 void GLAPIENTRY
 534 _mesa_DisableVertexAttribArrayARB(GLuint index)
 535 {
 536    struct gl_array_object *arrayObj;
 537    GET_CURRENT_CONTEXT(ctx);
 538    ASSERT_OUTSIDE_BEGIN_END(ctx);
 539
 540    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 541       _mesa_error(ctx, GL_INVALID_VALUE,
 542                   "glDisableVertexAttribArrayARB(index)");
 543       return;
 544    }
 545
 546    arrayObj = ctx->Array.ArrayObj;
 547
 548    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(arrayObj->VertexAttrib));
 549
 550    if (arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
 551       /* was enabled, now being disabled */
 552       FLUSH_VERTICES(ctx, _NEW_ARRAY);
 553       arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled = GL_FALSE;
 554       arrayObj->_Enabled &= ~VERT_BIT_GENERIC(index);
 555       arrayObj->NewArrays |= VERT_BIT_GENERIC(index);
 556    }
 557 }
 558
 559
 560 /**
 561  * Return info for a vertex attribute array (no alias with legacy
 562  * vertex attributes (pos, normal, color, etc)).  This function does
 563  * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
 564  */
 565 static GLuint
 566 get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname,
 567                   const char *caller)
 568 {
 569    const struct gl_client_array *array;
 570
 571    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 572       _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index);
 573       return 0;
 574    }
 575
 576    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 577
 578    array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
 579
 580    switch (pname) {
 581    case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
 582       return array->Enabled;
 583    case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
 584       return array->Size;
 585    case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
 586       return array->Stride;
 587    case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
 588       return array->Type;
 589    case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
 590       return array->Normalized;
 591    case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
 592       return array->BufferObj->Name;
 593    case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
 594       if (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4) {
 595          return array->Integer;
 596       }
 597       goto error;
 598    case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB:
 599       if (ctx->Extensions.ARB_instanced_arrays) {
 600          return array->InstanceDivisor;
 601       }
 602       goto error;
 603    default:
 604       ; /* fall-through */
 605    }
 606
 607 error:
 608    _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname);
 609    return 0;
 610 }
 611
 612
 613 static const GLfloat *
 614 get_current_attrib(struct gl_context *ctx, GLuint index, const char *function)
 615 {
 616    if (index == 0) {
 617       if (ctx->API != API_OPENGLES2) {
 618          _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function);
 619          return NULL;
 620       }
 621    }
 622    else if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 623       _mesa_error(ctx, GL_INVALID_VALUE,
 624                   "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function);
 625       return NULL;
 626    }
 627
 628    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 629
 630    FLUSH_CURRENT(ctx, 0);
 631    return ctx->Current.Attrib[VERT_ATTRIB_GENERIC(index)];
 632 }
 633
 634 void GLAPIENTRY
 635 _mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params)
 636 {
 637    GET_CURRENT_CONTEXT(ctx);
 638    ASSERT_OUTSIDE_BEGIN_END(ctx);
 639
 640    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 641       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribfv");
 642       if (v != NULL) {
 643          COPY_4V(params, v);
 644       }
 645    }
 646    else {
 647       params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname,
 648                                                     "glGetVertexAttribfv");
 649    }
 650 }
 651
 652
 653 void GLAPIENTRY
 654 _mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params)
 655 {
 656    GET_CURRENT_CONTEXT(ctx);
 657    ASSERT_OUTSIDE_BEGIN_END(ctx);
 658
 659    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 660       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribdv");
 661       if (v != NULL) {
 662          params[0] = (GLdouble) v[0];
 663          params[1] = (GLdouble) v[1];
 664          params[2] = (GLdouble) v[2];
 665          params[3] = (GLdouble) v[3];
 666       }
 667    }
 668    else {
 669       params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname,
 670                                                      "glGetVertexAttribdv");
 671    }
 672 }
 673
 674
 675 void GLAPIENTRY
 676 _mesa_GetVertexAttribivARB(GLuint index, GLenum pname, GLint *params)
 677 {
 678    GET_CURRENT_CONTEXT(ctx);
 679    ASSERT_OUTSIDE_BEGIN_END(ctx);
 680
 681    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 682       const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribiv");
 683       if (v != NULL) {
 684          /* XXX should floats in[0,1] be scaled to full int range? */
 685          params[0] = (GLint) v[0];
 686          params[1] = (GLint) v[1];
 687          params[2] = (GLint) v[2];
 688          params[3] = (GLint) v[3];
 689       }
 690    }
 691    else {
 692       params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
 693                                                   "glGetVertexAttribiv");
 694    }
 695 }
 696
 697
 698 /** GL 3.0 */
 699 void GLAPIENTRY
 700 _mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params)
 701 {
 702    GET_CURRENT_CONTEXT(ctx);
 703    ASSERT_OUTSIDE_BEGIN_END(ctx);
 704
 705    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 706       const GLfloat *v =
 707          get_current_attrib(ctx, index, "glGetVertexAttribIiv");
 708       if (v != NULL) {
 709          /* XXX we don't have true integer-valued vertex attribs yet */
 710          params[0] = (GLint) v[0];
 711          params[1] = (GLint) v[1];
 712          params[2] = (GLint) v[2];
 713          params[3] = (GLint) v[3];
 714       }
 715    }
 716    else {
 717       params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
 718                                                   "glGetVertexAttribIiv");
 719    }
 720 }
 721
 722
 723 /** GL 3.0 */
 724 void GLAPIENTRY
 725 _mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params)
 726 {
 727    GET_CURRENT_CONTEXT(ctx);
 728    ASSERT_OUTSIDE_BEGIN_END(ctx);
 729
 730    if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
 731       const GLfloat *v =
 732          get_current_attrib(ctx, index, "glGetVertexAttribIuiv");
 733       if (v != NULL) {
 734          /* XXX we don't have true integer-valued vertex attribs yet */
 735          params[0] = (GLuint) v[0];
 736          params[1] = (GLuint) v[1];
 737          params[2] = (GLuint) v[2];
 738          params[3] = (GLuint) v[3];
 739       }
 740    }
 741    else {
 742       params[0] = get_vertex_array_attrib(ctx, index, pname,
 743                                           "glGetVertexAttribIuiv");
 744    }
 745 }
 746
 747
 748 void GLAPIENTRY
 749 _mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer)
 750 {
 751    GET_CURRENT_CONTEXT(ctx);
 752    ASSERT_OUTSIDE_BEGIN_END(ctx);
 753
 754    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
 755       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)");
 756       return;
 757    }
 758
 759    if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {
 760       _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)");
 761       return;
 762    }
 763
 764    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
 765
 766    *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Ptr;
 767 }
 768
 769
 770 void GLAPIENTRY
 771 _mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
 772                        GLsizei count, const GLvoid *ptr)
 773 {
 774    (void) count;
 775    _mesa_VertexPointer(size, type, stride, ptr);
 776 }
 777
 778
 779 void GLAPIENTRY
 780 _mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 781                        const GLvoid *ptr)
 782 {
 783    (void) count;
 784    _mesa_NormalPointer(type, stride, ptr);
 785 }
 786
 787
 788 void GLAPIENTRY
 789 _mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
 790                       const GLvoid *ptr)
 791 {
 792    (void) count;
 793    _mesa_ColorPointer(size, type, stride, ptr);
 794 }
 795
 796
 797 void GLAPIENTRY
 798 _mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 799                       const GLvoid *ptr)
 800 {
 801    (void) count;
 802    _mesa_IndexPointer(type, stride, ptr);
 803 }
 804
 805
 806 void GLAPIENTRY
 807 _mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
 808                          GLsizei count, const GLvoid *ptr)
 809 {
 810    (void) count;
 811    _mesa_TexCoordPointer(size, type, stride, ptr);
 812 }
 813
 814
 815 void GLAPIENTRY
 816 _mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
 817 {
 818    (void) count;
 819    _mesa_EdgeFlagPointer(stride, ptr);
 820 }
 821
 822
 823 void GLAPIENTRY
 824 _mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
 825 {
 826    GET_CURRENT_CONTEXT(ctx);
 827    GLboolean tflag, cflag, nflag;  /* enable/disable flags */
 828    GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */
 829    GLenum ctype = 0;               /* color type */
 830    GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
 831    const GLint toffset = 0;        /* always zero */
 832    GLint defstride;                /* default stride */
 833    GLint c, f;
 834
 835    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 836
 837    f = sizeof(GLfloat);
 838    c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
 839
 840    if (stride < 0) {
 841       _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
 842       return;
 843    }
 844
 845    switch (format) {
 846       case GL_V2F:
 847          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 848          tcomps = 0;  ccomps = 0;  vcomps = 2;
 849          voffset = 0;
 850          defstride = 2*f;
 851          break;
 852       case GL_V3F:
 853          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 854          tcomps = 0;  ccomps = 0;  vcomps = 3;
 855          voffset = 0;
 856          defstride = 3*f;
 857          break;
 858       case GL_C4UB_V2F:
 859          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 860          tcomps = 0;  ccomps = 4;  vcomps = 2;
 861          ctype = GL_UNSIGNED_BYTE;
 862          coffset = 0;
 863          voffset = c;
 864          defstride = c + 2*f;
 865          break;
 866       case GL_C4UB_V3F:
 867          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 868          tcomps = 0;  ccomps = 4;  vcomps = 3;
 869          ctype = GL_UNSIGNED_BYTE;
 870          coffset = 0;
 871          voffset = c;
 872          defstride = c + 3*f;
 873          break;
 874       case GL_C3F_V3F:
 875          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 876          tcomps = 0;  ccomps = 3;  vcomps = 3;
 877          ctype = GL_FLOAT;
 878          coffset = 0;
 879          voffset = 3*f;
 880          defstride = 6*f;
 881          break;
 882       case GL_N3F_V3F:
 883          tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 884          tcomps = 0;  ccomps = 0;  vcomps = 3;
 885          noffset = 0;
 886          voffset = 3*f;
 887          defstride = 6*f;
 888          break;
 889       case GL_C4F_N3F_V3F:
 890          tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 891          tcomps = 0;  ccomps = 4;  vcomps = 3;
 892          ctype = GL_FLOAT;
 893          coffset = 0;
 894          noffset = 4*f;
 895          voffset = 7*f;
 896          defstride = 10*f;
 897          break;
 898       case GL_T2F_V3F:
 899          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 900          tcomps = 2;  ccomps = 0;  vcomps = 3;
 901          voffset = 2*f;
 902          defstride = 5*f;
 903          break;
 904       case GL_T4F_V4F:
 905          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
 906          tcomps = 4;  ccomps = 0;  vcomps = 4;
 907          voffset = 4*f;
 908          defstride = 8*f;
 909          break;
 910       case GL_T2F_C4UB_V3F:
 911          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 912          tcomps = 2;  ccomps = 4;  vcomps = 3;
 913          ctype = GL_UNSIGNED_BYTE;
 914          coffset = 2*f;
 915          voffset = c+2*f;
 916          defstride = c+5*f;
 917          break;
 918       case GL_T2F_C3F_V3F:
 919          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
 920          tcomps = 2;  ccomps = 3;  vcomps = 3;
 921          ctype = GL_FLOAT;
 922          coffset = 2*f;
 923          voffset = 5*f;
 924          defstride = 8*f;
 925          break;
 926       case GL_T2F_N3F_V3F:
 927          tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;
 928          tcomps = 2;  ccomps = 0;  vcomps = 3;
 929          noffset = 2*f;
 930          voffset = 5*f;
 931          defstride = 8*f;
 932          break;
 933       case GL_T2F_C4F_N3F_V3F:
 934          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 935          tcomps = 2;  ccomps = 4;  vcomps = 3;
 936          ctype = GL_FLOAT;
 937          coffset = 2*f;
 938          noffset = 6*f;
 939          voffset = 9*f;
 940          defstride = 12*f;
 941          break;
 942       case GL_T4F_C4F_N3F_V4F:
 943          tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
 944          tcomps = 4;  ccomps = 4;  vcomps = 4;
 945          ctype = GL_FLOAT;
 946          coffset = 4*f;
 947          noffset = 8*f;
 948          voffset = 11*f;
 949          defstride = 15*f;
 950          break;
 951       default:
 952          _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
 953          return;
 954    }
 955
 956    if (stride==0) {
 957       stride = defstride;
 958    }
 959
 960    _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
 961    _mesa_DisableClientState( GL_INDEX_ARRAY );
 962    /* XXX also disable secondary color and generic arrays? */
 963
 964    /* Texcoords */
 965    if (tflag) {
 966       _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
 967       _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
 968                              (GLubyte *) pointer + toffset );
 969    }
 970    else {
 971       _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
 972    }
 973
 974    /* Color */
 975    if (cflag) {
 976       _mesa_EnableClientState( GL_COLOR_ARRAY );
 977       _mesa_ColorPointer( ccomps, ctype, stride,
 978                           (GLubyte *) pointer + coffset );
 979    }
 980    else {
 981       _mesa_DisableClientState( GL_COLOR_ARRAY );
 982    }
 983
 984
 985    /* Normals */
 986    if (nflag) {
 987       _mesa_EnableClientState( GL_NORMAL_ARRAY );
 988       _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
 989    }
 990    else {
 991       _mesa_DisableClientState( GL_NORMAL_ARRAY );
 992    }
 993
 994    /* Vertices */
 995    _mesa_EnableClientState( GL_VERTEX_ARRAY );
 996    _mesa_VertexPointer( vcomps, GL_FLOAT, stride,
 997                         (GLubyte *) pointer + voffset );
 998 }
 999
1000
1001 void GLAPIENTRY
1002 _mesa_LockArraysEXT(GLint first, GLsizei count)
1003 {
1004    GET_CURRENT_CONTEXT(ctx);
1005    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1006
1007    if (MESA_VERBOSE & VERBOSE_API)
1008       _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
1009
1010    if (first < 0) {
1011       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
1012       return;
1013    }
1014    if (count <= 0) {
1015       _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
1016       return;
1017    }
1018    if (ctx->Array.LockCount != 0) {
1019       _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
1020       return;
1021    }
1022
1023    ctx->Array.LockFirst = first;
1024    ctx->Array.LockCount = count;
1025
1026    ctx->NewState |= _NEW_ARRAY;
1027 }
1028
1029
1030 void GLAPIENTRY
1031 _mesa_UnlockArraysEXT( void )
1032 {
1033    GET_CURRENT_CONTEXT(ctx);
1034    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1035
1036    if (MESA_VERBOSE & VERBOSE_API)
1037       _mesa_debug(ctx, "glUnlockArrays\n");
1038
1039    if (ctx->Array.LockCount == 0) {
1040       _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
1041       return;
1042    }
1043
1044    ctx->Array.LockFirst = 0;
1045    ctx->Array.LockCount = 0;
1046    ctx->NewState |= _NEW_ARRAY;
1047 }
1048
1049
1050 /* GL_EXT_multi_draw_arrays */
1051 void GLAPIENTRY
1052 _mesa_MultiDrawArraysEXT( GLenum mode, const GLint *first,
1053                           const GLsizei *count, GLsizei primcount )
1054 {
1055    GET_CURRENT_CONTEXT(ctx);
1056    GLint i;
1057
1058    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1059
1060    for (i = 0; i < primcount; i++) {
1061       if (count[i] > 0) {
1062          CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));
1063       }
1064    }
1065 }
1066
1067
1068 /* GL_IBM_multimode_draw_arrays */
1069 void GLAPIENTRY
1070 _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
1071                               const GLsizei * count,
1072                               GLsizei primcount, GLint modestride )
1073 {
1074    GET_CURRENT_CONTEXT(ctx);
1075    GLint i;
1076
1077    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1078
1079    for ( i = 0 ; i < primcount ; i++ ) {
1080       if ( count[i] > 0 ) {
1081          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1082          CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
1083       }
1084    }
1085 }
1086
1087
1088 /* GL_IBM_multimode_draw_arrays */
1089 void GLAPIENTRY
1090 _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
1091                                 GLenum type, const GLvoid * const * indices,
1092                                 GLsizei primcount, GLint modestride )
1093 {
1094    GET_CURRENT_CONTEXT(ctx);
1095    GLint i;
1096
1097    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1098
1099    /* XXX not sure about ARB_vertex_buffer_object handling here */
1100
1101    for ( i = 0 ; i < primcount ; i++ ) {
1102       if ( count[i] > 0 ) {
1103          GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
1104          CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
1105       }
1106    }
1107 }
1108
1109
1110 /**
1111  * GL_NV_primitive_restart and GL 3.1
1112  */
1113 void GLAPIENTRY
1114 _mesa_PrimitiveRestartIndex(GLuint index)
1115 {
1116    GET_CURRENT_CONTEXT(ctx);
1117
1118    if (!ctx->Extensions.NV_primitive_restart && ctx->Version < 31) {
1119       _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()");
1120       return;
1121    }
1122
1123    ASSERT_OUTSIDE_BEGIN_END(ctx);
1124
1125    if (ctx->Array.RestartIndex != index) {
1126       FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
1127       ctx->Array.RestartIndex = index;
1128    }
1129 }
1130
1131
1132 /**
1133  * See GL_ARB_instanced_arrays.
1134  * Note that the instance divisor only applies to generic arrays, not
1135  * the legacy vertex arrays.
1136  */
1137 void GLAPIENTRY
1138 _mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
1139 {
1140    struct gl_client_array *array;
1141    GET_CURRENT_CONTEXT(ctx);
1142    ASSERT_OUTSIDE_BEGIN_END(ctx);
1143
1144    if (!ctx->Extensions.ARB_instanced_arrays) {
1145       _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");
1146       return;
1147    }
1148
1149    if (index >= ctx->Const.VertexProgram.MaxAttribs) {
1150       _mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)",
1151                   index);
1152       return;
1153    }
1154
1155    ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
1156
1157    array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
1158    if (array->InstanceDivisor != divisor) {
1159       FLUSH_VERTICES(ctx, _NEW_ARRAY);
1160       array->InstanceDivisor = divisor;
1161       ctx->Array.ArrayObj->NewArrays |= VERT_BIT(VERT_ATTRIB_GENERIC(index));
1162    }
1163 }
1164
1165
1166
1167 /**
1168  * Copy one client vertex array to another.
1169  */
1170 void
1171 _mesa_copy_client_array(struct gl_context *ctx,
1172                         struct gl_client_array *dst,
1173                         struct gl_client_array *src)
1174 {
1175    dst->Size = src->Size;
1176    dst->Type = src->Type;
1177    dst->Format = src->Format;
1178    dst->Stride = src->Stride;
1179    dst->StrideB = src->StrideB;
1180    dst->Ptr = src->Ptr;
1181    dst->Enabled = src->Enabled;
1182    dst->Normalized = src->Normalized;
1183    dst->Integer = src->Integer;
1184    dst->InstanceDivisor = src->InstanceDivisor;
1185    dst->_ElementSize = src->_ElementSize;
1186    _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
1187    dst->_MaxElement = src->_MaxElement;
1188 }
1189
1190
1191
1192 /**
1193  * Print vertex array's fields.
1194  */
1195 static void
1196 print_array(const char *name, GLint index, const struct gl_client_array *array)
1197 {
1198    if (index >= 0)
1199       printf("  %s[%d]: ", name, index);
1200    else
1201       printf("  %s: ", name);
1202    printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
1203           array->Ptr, array->Type, array->Size,
1204           array->_ElementSize, array->StrideB,
1205           array->BufferObj->Name, (unsigned long) array->BufferObj->Size,
1206           array->_MaxElement);
1207 }
1208
1209
1210 /**
1211  * Print current vertex object/array info.  For debug.
1212  */
1213 void
1214 _mesa_print_arrays(struct gl_context *ctx)
1215 {
1216    struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
1217    GLuint i;
1218
1219    _mesa_update_array_object_max_element(ctx, arrayObj);
1220
1221    printf("Array Object %u\n", arrayObj->Name);
1222    if (arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled)
1223       print_array("Vertex", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);
1224    if (arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled)
1225       print_array("Normal", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);
1226    if (arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled)
1227       print_array("Color", -1, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);
1228    for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++)
1229       if (arrayObj->VertexAttrib[VERT_ATTRIB_TEX(i)].Enabled)
1230          print_array("TexCoord", i, &arrayObj->VertexAttrib[VERT_ATTRIB_TEX(i)]);
1231    for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++)
1232       if (arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(i)].Enabled)
1233          print_array("Attrib", i, &arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(i)]);
1234    printf("  _MaxElement = %u\n", arrayObj->_MaxElement);
1235 }
1236
1237
1238 /**
1239  * Initialize vertex array state for given context.
1240  */
1241 void
1242 _mesa_init_varray(struct gl_context *ctx)
1243 {
1244    ctx->Array.DefaultArrayObj = ctx->Driver.NewArrayObject(ctx, 0);
1245    _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,
1246                                 ctx->Array.DefaultArrayObj);
1247    ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */
1248
1249    ctx->Array.Objects = _mesa_NewHashTable();
1250 }
1251
1252
1253 /**
1254  * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().
1255  */
1256 static void
1257 delete_arrayobj_cb(GLuint id, void *data, void *userData)
1258 {
1259    struct gl_array_object *arrayObj = (struct gl_array_object *) data;
1260    struct gl_context *ctx = (struct gl_context *) userData;
1261    _mesa_delete_array_object(ctx, arrayObj);
1262 }
1263
1264
1265 /**
1266  * Free vertex array state for given context.
1267  */
1268 void
1269 _mesa_free_varray_data(struct gl_context *ctx)
1270 {
1271    _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);
1272    _mesa_DeleteHashTable(ctx->Array.Objects);
1273 }